Starting today, crews will begin installation of a major water line that replaces the 98-year-old line that ruptured back in 2009 and caused significant flooding.

The work will take place primarily between Halkirk Street and Avenida Del Sol between 9 a.m. and 3:30 p.m. on weekdays — and at various hours on Saturdays — which will reduce Coldwater Canyon to one lane of traffic.

Flag crews will be on hand to direct traffic through the area.

The closure was unwelcome news to members of a landscaping crew that frequently drives the canyon.

“This is one of the main arteries we use other than the 405, and now we’re screwed I guess,” said one worker.

Studio City in particular has been plagued by recent water main breaks, including one rupture last November that left the busy intersection of Ventura Boulevard near Whitsett Avenue completely shut down for repairs.